Reversible weakness and encephalopathy while on long term valproate treatment due to carnitine deficiency BMJ Case Reports Carnitine Deficiency with Hyperbilirubinemia, Generalized Skeletal Muscle Weakness and Reactive Hypoglycemia in a Patient on Lon L Carnitine Carnitine: the claims and why it may not work Carnitine is necessary to maintain the phenotype and function of brown adipose tissue Laboratory Investigation